Respuesta :

Answer:

use the formula

Step-by-step explanation:

its 2lw+2lh+2hw

h=5

w=4

l=6

The surface area is 136cm squared

5 * 4 = 20
20 * 2 = 40

6 * 4 = 24
24 * 4 = 96

40 + 96 = 136

I hope I helped. I would appreciate Brainliest.